Studies on Reactions of Nucleoside H-Phosphonates with Bifunctional Reagents. Part III. Further Studies on Transesterification of Nucleoside H-Phosphonate Diesters with Amino Alcohols

Abstract

Abstract Reactions of 5′-O-(4,4′-dimethoxytrityl)thymidin-3′-yl 2-cyanoethyl phosphonate with alcohols, amines and amino alcohols in pyridine are described Transesterification was found to be faster than β-elimination of 2-cyanoethyl group